Title: Eye and melatonin friendly candlelight OLED

Biography:

Jwo-Huei Jou has received his PhD from the University of Michigan, Ann Arbor, Michigan, USA, in 1986 and then worked as a post-doctoral visiting scientist at IBM-Almaden Research Center, San Jose, California, USA before joining National Tsing-Hua University in 1988. His research interest includes natural-light style and high-efficiency organic light - emitting diodes (OLEDs). He has been granted 89 patents and published 187 journal papers with an H-index of 38. He is the pioneer of sunlight and candlelight-style OLEDs and had recently commercialized the first blue hazard free, candlelight OLED desk lamp as well as the first blue hazard quantifying instrument based on his granted patents.

Abstract

Long exposure of intensive blue and violet lights could be highly hazardous to human eyes, regardless day or night, and extremely threatful to melatonin generation at night. These two "blue hazards" can be quantified according to the well-known photoretinitis function and action spectrum of melatonin suppression. Retina and melatonin friendly lighting sources can hence be designed, accordingly. We will demonstrate herein that blue emission free candlelight style organic light-emitting diode (OLED) can be the ideal healthy lighting measure. It is strongly suggested that luminaires, as well as 3C monitors, be dimmed to a very low level, such as 10 lx, and switched to a blue light-less mode or to an ultra-low color temperature, such as 1,600 to 1,800K, if light using is not preventable.